28 September 2021
Connection in progress on the keypad with an ATV212 drive.Product Line:
In most cases, the issue is because the baud rate and parity settings of the HMI modbus has been altered.Resolution:
Verify the following parameters using built in display.
F800=1 (Baud rate) 1= 19.2K
F801=1 (Parity) 1= Even parity
Also, the keypad Flash must be V1.1IE29 or higher.
Also, try swapping out the control terminal block with a known good one that has the F, R RES wires connected to it.
Power cycle once changes are made.
In other cases, a power supply issue where the +10V source PP and +24V source P24 may have issues or shorting.